Upgrade to React Native 0.62.2 iOS error: Undefined symbol _swift_getFunctionReplacement

React Native Apr 30, 2020 Viewed 2.6K Comments 0

Question

When upgrading React Native from 0.61.5 to 0.62.2, Xcode compiles with errors:

Undefined symbols for architecture x86_64:
  "_swift_getFunctionReplacement", referenced from:
      _swift_getFunctionReplacement50 in libswiftCompatibilityDynamicReplacements.a(DynamicReplaceable.cpp.o)
     (maybe you meant: _swift_getFunctionReplacement50)
  "_swift_getOrigOfReplaceable", referenced from:
      _swift_getOrigOfReplaceable50 in libswiftCompatibilityDynamicReplacements.a(DynamicReplaceable.cpp.o)
     (maybe you meant: _swift_getOrigOfReplaceable50)

Solution

We can set Dead Code Stripping to YES.

In Xcode, select PROJECT-> Build Settings-> LInking-> Dead Code Stringpping, set to YES, and then recompile.

Set Dead Code Stripping to YES

Updated Apr 30, 2020